package com.heima.article.service.impl;

import com.alibaba.fastjson.JSON;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.heima.article.mapper.ApArticleConfigMapper;
import com.heima.article.mapper.ApArticleContentMapper;
import com.heima.article.mapper.ApArticleMapper;
import com.heima.article.service.ApArticleService;
import com.heima.article.thread.AppThreadLocalUtil;
import com.heima.common.cache.CacheService;
import com.heima.common.constants.BehaviorConstants;
import com.heima.common.freemarker.FreemarkerGenerator;
import com.heima.file.MinIoTemplate;
import com.heima.model.article.dtos.ArticleDto;
import com.heima.model.article.dtos.ArticleHomeDto;
import com.heima.model.article.dtos.ArticleInfoDto;
import com.heima.model.article.pojos.ApArticle;
import com.heima.model.article.pojos.ApArticleConfig;
import com.heima.model.article.pojos.ApArticleContent;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.search.pojos.SearchArticleVo;
import com.heima.model.user.pojos.ApUser;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.kafka.core.KafkaTemplate;
import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.io.InputStream;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@Service
public class ApArticleServiceImpl extends ServiceImpl<ApArticleMapper, ApArticle> implements ApArticleService {
    @Autowired
    private ApArticleMapper apArticleMapper;

    @Override
    public ResponseResult load(ArticleHomeDto dto) {
        // minBehotTime = 2063
        // publish_time < minBehotTime

        List<ApArticle> apArticles=apArticleMapper.loadArticle(dto,1);
        return ResponseResult.okResult(apArticles);
    }

    @Override
    public ResponseResult loadmore(ArticleHomeDto dto) {
        // publish_time < minBehotTime
        List<ApArticle> apArticles=apArticleMapper.loadArticle(dto,1);
        return ResponseResult.okResult(apArticles);

    }

    @Override
    public ResponseResult loadnew(ArticleHomeDto dto) {

        // publish_time > minBehotTime
        List<ApArticle> apArticles=apArticleMapper.loadArticle(dto,2);
        return ResponseResult.okResult(apArticles);

    }
    @Autowired
    private ApArticleContentMapper apArticleContentMapper;


    @Autowired
    private FreemarkerGenerator freemarkerGenerator;

    @Autowired
    private MinIoTemplate minIoTemplate;

    @Autowired
    private ApArticleConfigMapper apArticleConfigMapper;

    @Autowired
    private KafkaTemplate<String,String> kafkaTemplate;

    /**
     * 送消息，创建索引
     * @param apArticle
     * @param content
     * @param
     */
    public void sendIndexUpdate(ApArticle apArticle, String content) {
        if (apArticle==null|| StringUtils.isBlank(content)){
            log.warn("入参不能为空");
            return;
        }
        SearchArticleVo vo = new SearchArticleVo();
        BeanUtils.copyProperties(apArticle,vo);
        vo.setContent(content);

        kafkaTemplate.send("es.index.update", JSON.toJSONString(vo));
    }

    @Override
    @Async
    public void generate(Long articleId) {
        // 1. 查询aparticlecontent表,获得里面的content数据
        LambdaQueryWrapper<ApArticleContent> wrapper = new LambdaQueryWrapper<>();
        wrapper.eq(ApArticleContent::getArticleId,articleId);
        ApArticleContent apArticleContent = apArticleContentMapper.selectOne(wrapper);
        if (apArticleContent==null){
            log.warn("文章内容不存在");
            return;
        }
        // 2. 创建一个数据集合map,把上一步content数据赋值到content字段上
        Map<String,Object> map=new HashMap<>(1);
        map.put("content", JSON.parseArray(apArticleContent.getContent()));

        // 3. 调用freemarker插件,生成html页面
        InputStream is = freemarkerGenerator.generate("article.ftl", map);

        //4. 调用minio插件上传html页面
        String url = minIoTemplate.uploadFile("", articleId + ".html", is, "html");

        ApArticle apArticle = apArticleMapper.selectById(articleId);
        if (apArticle==null){
            log.warn("文章为空");
            return;
        }
        apArticle.setStaticUrl(url);


        //5.更新aparticle,修改里面static_url字段
        apArticleMapper.updateById(apArticle);






    }

    @Override
    @Transactional(rollbackFor = RuntimeException.class)
    public ResponseResult saveArticle(ArticleDto dto) {

        // 1. dto判空
        if (dto == null) {
            return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_REQUIRE);
        }

        ApArticle apArticle = new ApArticle();
        BeanUtils.copyProperties(dto, apArticle);

        // 2. 判断是新增还是修改
        Long id = dto.getId();
        if (id == null) {
            // 3 新增

            // 3.2 插入article表
            int articleResult = apArticleMapper.insert(apArticle);
            if (articleResult < 1) {
                return ResponseResult.errorResult(AppHttpCodeEnum.SERVER_ERROR);
            }

            // 3.3 插入article_config表
            ApArticleConfig config = new ApArticleConfig();
            config.setArticleId(apArticle.getId());
            config.setIsForward(true);
            config.setIsDown(false);
            config.setIsDelete(false);
            config.setIsComment(true);
            int configResult = apArticleConfigMapper.insert(config);
            if (configResult < 1) {
                throw new RuntimeException("配置表插入失败");
            }

            // 3.4 插入article_content表
            ApArticleContent articleContent = new ApArticleContent();
            articleContent.setArticleId(apArticle.getId());
            articleContent.setContent(dto.getContent());
            int contentResult = apArticleContentMapper.insert(articleContent);
            if (contentResult < 1) {
                throw new RuntimeException("内容表插入失败");
            }


            //调用现有的方法  实现文章详情的生成和更新
            generate(apArticle.getId());


            return ResponseResult.okResult(apArticle.getId());

        } else {
            // 4. 修改

            // 4.1 修改article表
            int articleUpdateResult = apArticleMapper.updateById(apArticle);
            if (articleUpdateResult < 1) {
                return ResponseResult.errorResult(AppHttpCodeEnum.SERVER_ERROR);
            }

            // 4.2 修改article_content表
            LambdaQueryWrapper<ApArticleContent> wrapper = new LambdaQueryWrapper<>();
            wrapper.eq(ApArticleContent::getArticleId,id);
            // 修改的数据
            ApArticleContent articleContent = new ApArticleContent();
            articleContent.setContent(dto.getContent());

            int contentUpdateResult = apArticleContentMapper.update(articleContent, wrapper);
            if (contentUpdateResult < 1) {
                throw new RuntimeException("内容表修改失败");
            }

            //调用详情生成
            generate(id);

            return ResponseResult.okResult(id);
        }

    }


    @Autowired
    private CacheService cacheService;

    @Override
    public ResponseResult loadArticleBehavior(ArticleInfoDto dto) {
        if (dto == null) {
            return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID);
        }

        boolean isfollow = false;
        boolean islike = false;
        boolean isunlike = false;
        boolean iscollection = false;

        ApUser user = AppThreadLocalUtil.getUser();
        if(user != null){
            //喜欢行为
            String likeBehaviorJson = (String) cacheService.hGet(BehaviorConstants.LIKE_BEHAVIOR + dto.getArticleId().toString(), user.getId().toString());
            if(StringUtils.isNotBlank(likeBehaviorJson)){
                islike = true;
            }

            //不喜欢的行为
            String unLikeBehaviorJson = (String) cacheService.hGet(BehaviorConstants.UN_LIKE_BEHAVIOR + dto.getArticleId().toString(), user.getId().toString());
            if(StringUtils.isNotBlank(unLikeBehaviorJson)){
                isunlike = true;
            }

            //是否收藏
            String collctionJson = (String) cacheService.hGet(BehaviorConstants.COLLECTION_BEHAVIOR+user.getId(),dto.getArticleId().toString());
            if(StringUtils.isNotBlank(collctionJson)){
                iscollection = true;
            }

            //是否关注
            Double score = cacheService.zScore(BehaviorConstants.APUSER_FOLLOW_RELATION + user.getId(), dto.getAuthorId().toString());
            System.out.println(score);
            if(score != null){
                isfollow = true;
            }

        }

        Map<String, Object> resultMap = new HashMap<>();
        resultMap.put("isfollow", isfollow);
        resultMap.put("islike", islike);
        resultMap.put("isunlike", isunlike);
        resultMap.put("iscollection", iscollection);

        return ResponseResult.okResult(resultMap);
    }

}
